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<br />Woodward.Clyde Consultants <br /> <br />r". r>~ ~ <br />(..,...; , ...J <br /> <br />II. SITE GEOLOGY <br /> <br />1. General <br /> <br />Our analyses of geologic data concerning Narrows Darn has <br /> <br />involved discussions with Bureau staff members, field <br />examination of the site area and review o~vailable materials <br />furnished 'by the Bureau. Data examined/a.re listed as <br />References land 22 through 27. Thi~ ~l~~iew was made <br />with the primary objective of sear;7~g out ~i~9iC conditions <br />that could affect the safety of tne darn and associated <br /> <br />designers during final deSig~ <br />No in-depth geology report had'~ prepared yet by the <br />Bureau. The geologic ~de-a~~ble to us, consisted of <br />some indirectly related }e~jlfOneaining brief references to <br />the site or some very pre~n~y reports prepared basically <br />for project Plan~~e by th~Bureau. Some early data were <br />_ ___ _ _ _P rep~:::.<: _by_ ~o~~-,>gEngine-€r-6 -who-cons-rderecr t:~ - - -- - <br />flood control PQten~ for the site. Some data are also <br />available/from-a~Qra~Q School of Mines doctorate thesis and <br />from r~~anal~s prepared for the Colorado Water <br />cons~v~tion Boar~ by private consultants. There have been <br />some ~~gi~~6H) borings made over the period 1944 to <br />.,,-"" ! <br />1976, and logs'9f these borings are available as indicated on <br /> <br />and <br /> <br />--' <br /> <br />the attached list of data. Two continuous Denison <br /> <br />(undisturbed) sample holes were recently drilled on the left <br /> <br />- 6 - <br /> <br />~ <br /> <br />-- <br />---- --~~- <br />